I have had a few kits on my car:
Intrax SVT + KYB AGX (my favorite)
H&R race + koni yellow
Bilstien PSS9 (second favorite)
Overall I like the Intrax/AGX setup the best for daily driving, but for split use (track + dd) I would go with the Bilstien PSS9.
Pitch Black 2003 2.3L ZX3 - FSWerks Turbocharged (parting out, bye bye)
Superblack 2004 Nissan 350z Touring - mods in progress